CIRENDEU, Indonesia — Soldiers and police dug through piles of mud and debris Saturday in a desperate search for survivors after a flood from a burst dam killed at least 77 people outside Indonesia's capital. But they were losing hope the 100 still missing would be found alive.

Days of torrential downpours filled a large lake bordering the low-lying residential area of Cirendeu to flood level. A huge section of the Dutch colonial-era dike tore away before dawn Friday, sending more than 70 million cubic feet (2 million cubic meters) of water gushing through the gaping hole.

Some residents said it felt like they'd been hit by a tsunami.

They accused authorities of ignoring warning signs and failing to repair damage to the dam, claiming it had been weakened in several places over the years because of prior flooding caused by blocked spillways.

Hundreds gathered at nearby Muhammadiyah University, pressed into service as a makeshift morgue, with bodies lined up in a row under batik sheets. Mothers wailed as they identified their dead children.

Four field hospitals were set up to accommodate more than 180 wounded, some with broken bones, head wounds and severe cuts, said Rustam Pakaya, an official with the government crisis center.

The death toll kept climbing as soldiers, police and volunteers dug in with excavators, hoes or their bare hands, reaching 77 by nightfall.

"We've evacuated almost all of the survivors from their houses," said National Disaster Coordinating Agency spokesman Priyadi Kardono. "We fear most of the 102 reported missing have been killed."